Dog collar



FIG. 1 is a perspective view of a dog collar showing my new design, the partial broken-line showing of the dog being for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a front elevational view thereof, the rear being substantially similar in appearance;

FIG. 3 is a side elevational view thereof, the opposite side being substantially similar in appearance;

FIG. 4 is an enlarged side elevational view of one of the bead components thereof, the other bead and collar components being omitted for clarity of illustration;

FIG. 5 is a top plan view of the bead component of FIG. 4, the bottom being substantially similar in appearance; and

FIG. 6 is an opposite side elevational view of the bead component of FIG. 4. 

The ornamental design for a dog collar, as shown and described. 